Seventh Chord Name

Major Seventh

Major minor Seventh or
Dominant Seventh

Minor Seventh

Half Diminished

Fully Diminished or
Diminished Seventh

Lower third

M

M

M

m

m

middle third

m

m

M

m

m

upper third

M

m

m

M

m

TRIAD

M

M

m

d

d

Seventh
(from root to seventh)

M

m

m

m

d

Triad/Seventh Symbol

MM

Mm

mm

dm

dd

Kostka
System

M7

Mm

m7

^Ø

°

Pop/Jazz
Symbol

Maj7

7

m7

m^b57

dim7